每日一题

Writing>Identifying Sentence Errors

The following sentence contains either a single error or no error at all. If the sentence contains an error, select the one underlined part that must be changed to make the sentence correct.If the sentence contains no error, select choice E.

The new law requires that all bicycle riders have been wearing helmets while on their bicycles, even when they are not moving. No error

(A) have been wearing
(B) while
(C) their bicycles
(D) even when
(E) No error

答案和解析

答案：A

解析：

The error in this sentence occurs at (A), where there is an improper verb form. The use of "requires that" dictates that the subjunctive form of "to wear" is needed. The phrase "have been wearing" should simply be "wear."